Open Access

Albumin-based nanoparticles as methylprednisolone carriers for targeted delivery towards the neonatal Fc receptor in glomerular podocytes

  • Authors:
    • Lin Wu
    • Mingyu Chen
    • Huijuan Mao
    • Ningning Wang
    • Bo Zhang
    • Xiufen Zhao
    • Jun Qian
    • Changying Xing
  • View Affiliations

  • Published online on: February 21, 2017     https://doi.org/10.3892/ijmm.2017.2902
  • Pages: 851-860
  • Copyright: © Wu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Glucocorticoids (GCs) are commonly used in the treatment of nephrotic syndrome. However, high doses and long periods of GC therapy can result in severe side effects. The present study aimed to selectively deliver albumin‑methylprednisolone (MP) nanoparticles towards glomerular podocytes, which highly express the specific neonatal Fc receptor (FcRn) of albumin. Bovine serum albumin (BSA) was labeled with a fluorescent dye and linked with modified MP via an amide bond. The outcome nanoparticle named BSA633‑MP showed a uniform size with a diameter of approximately 10 nm and contained 12 drug molecules on average. The nanoconjugates were found to be stable at pH 7.4 and acid‑sensitive at pH 4.0, with approximately 72% release of the MP drug after 48 h of incubation. The nanoparticle demonstrated a 36‑fold uptake in receptor‑specific cellular delivery in the FcRn‑expressing human podocytes compared to the uptake in the non-FcRn-expressing control cells. Co‑localization further confirmed that uptake of the nanoconjugates involved receptor‑mediated endocytosis followed by lysosome associated transportation. In vitro cellular experiments indicated that the BSA633‑MP ameliorated puromycin aminonucleoside‑induced podocyte apoptosis. Moreover, in vivo fluorescence molecular imaging showed that BSA633-MP was mainly accumulated in the liver and kidney after intravenous dosing for 24 h. Collectively, this study may provide an approach for the effective and safe therapy of nephrotic syndrome.
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April-2017
Volume 39 Issue 4

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Wu L, Chen M, Mao H, Wang N, Zhang B, Zhao X, Qian J and Xing C: Albumin-based nanoparticles as methylprednisolone carriers for targeted delivery towards the neonatal Fc receptor in glomerular podocytes. Int J Mol Med 39: 851-860, 2017.
APA
Wu, L., Chen, M., Mao, H., Wang, N., Zhang, B., Zhao, X. ... Xing, C. (2017). Albumin-based nanoparticles as methylprednisolone carriers for targeted delivery towards the neonatal Fc receptor in glomerular podocytes. International Journal of Molecular Medicine, 39, 851-860. https://doi.org/10.3892/ijmm.2017.2902
MLA
Wu, L., Chen, M., Mao, H., Wang, N., Zhang, B., Zhao, X., Qian, J., Xing, C."Albumin-based nanoparticles as methylprednisolone carriers for targeted delivery towards the neonatal Fc receptor in glomerular podocytes". International Journal of Molecular Medicine 39.4 (2017): 851-860.
Chicago
Wu, L., Chen, M., Mao, H., Wang, N., Zhang, B., Zhao, X., Qian, J., Xing, C."Albumin-based nanoparticles as methylprednisolone carriers for targeted delivery towards the neonatal Fc receptor in glomerular podocytes". International Journal of Molecular Medicine 39, no. 4 (2017): 851-860. https://doi.org/10.3892/ijmm.2017.2902